66223124 has 24 divisors (see below), whose sum is σ = 130788000. Its totient is φ = 29062880.

The previous prime is 66223123. The next prime is 66223133. The reversal of 66223124 is 42132266.

It is a junction number, because it is equal to n+sod(n) for n = 66223093 and 66223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66223121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24674 + ... + 27225.

It is an arithmetic number, because the mean of its divisors is an integer number (5449500).

Almost surely, 2^66223124 is an apocalyptic number.

It is an amenable number.

66223124 is a deficient number, since it is larger than the sum of its proper divisors (64564876).

66223124 is a wasteful number, since it uses less digits than its factorization.

66223124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51943 (or 51941 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 66223124 is about 8137.7591510194. The cubic root of 66223124 is about 404.5788926831.

The spelling of 66223124 in words is "sixty-six million, two hundred twenty-three thousand, one hundred twenty-four".